Question

Which mirrors are used in laughing gallery in some science centres

Answer 1

Convex or concave are mirrors which is used in laughing gallery in some science centers.

Answer 2

hey mate !here's ur answer
spherical mirrors are used in laughing gallery in some science centres because Withdrawal or the retreat of monsoon is a more gradual process. .The withdrawal of the monsoon begins in the northwestern states of India, by early September.By mid-October, it withdraws completely from the northern half of the peninsula.The withdrawal from the southern half of the peninsula is fairly rapid.By early December, the monsoon withdraws from the rest of the country.
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